First mRNA vaccine against deadly nipah virus shows promise in early trial
NCT ID NCT05398796
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This early-stage trial tested an experimental mRNA vaccine (mRNA-1215) for Nipah virus, a deadly infection with no approved treatments. Forty healthy adults received two doses of the vaccine and were monitored for safety and immune response. The vaccine cannot cause Nipah infection. Results will help determine if further testing is warranted.
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Study facts
What this study's own registry entry says, in plain language.
- Phase
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Phase 1
The first testing in people. Mainly checks safety and dose, usually in a small group.
- Participants
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40 people
The number who actually took part.
- Started
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Jul 2022
- Finished
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Sep 2024
- Lead sponsor
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A government research agency
The lead sponsor is the US National Institutes of Health.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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18 to 60 years
- Sex
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Anyone
- Healthy volunteers
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Accepted
You do not need to have the condition being studied to take part.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
* INCLUSION CRITERIA: A volunteer must meet all of the following criteria: 1. Healthy adults between the ages of 18-60 years inclusive. 2. Based on history and physical examination, in good general health and without history of any of the conditions listed in the exclusion criteria. 3. Able and willing to complete the informed consent process. 4. Available for clinic visits for 52 weeks after last product administration. 5. Able to provide proof of identity to the satisfaction of the study clinician completing the enrollment process. 6. Physical examination and laboratory results without clinically significant findings and a Body Mass Index (BMI) of 18 to 35 within the 56 days prior to enrollment. Laboratory Criteria within 56 days before enrollment: 7. White blood cells (WBC) and differential within institutional normal range or accompanied by the site Principal Investigator (PI) or designee approval. 8. Total lymphocyte count \>= 800 cells/microL. 9. Platelets = 125,000 - 500,000 cells/microL. 10. Hemoglobin within institutional normal range or accompanied by the PI or designee approval. 11. Alanine aminotransferase (ALT) \<= 1.25 X institutional upper limit of normal (ULN). 12. Aspartate aminotransferase (AST) \<= 1.25 X institutional ULN. 13. Alkaline phosphatase (ALP) \<1.1 X institutional ULN. 14. Total bilirubin within institutional normal range or accompanied by the PI or designee approval. 15. Serum creatinine \<= 1.1 X institutional ULN. 16. Negative for HIV infection by an FDA-approved method of detection Criteria applicable to women of childbearing potential: 17. Negative beta-human chorionic gonadotropin (Beta-HCG) pregnancy test (urine or serum) on the day of enrollment. 18. Agrees to use an effective means of birth control from at least 21 days prior to enrollment through the end of the study. EXCLUSION CRITERIA: A volunteer will be excluded if one or more of the following conditions apply: 1. Breast-feeding or planning to become pregnant during the study. 2. More than 10 days of systemic immunosuppressive medications or cytotoxic medications within the 4 weeks prior to enrollment or any within the 14 days prior to enrollment. 3. Blood products within 16 weeks prior to enrollment. 4. Any vaccine, including COVID-19 vaccines, received within 4 weeks prior to enrollment. 5. Investigational research agents within 4 weeks prior to enrollment or planning to receive investigational products while on the study 6. Current allergy treatment with allergen immunotherapy with antigen injections, unless on maintenance schedule. 7. Current anti-TB prophylaxis or therapy. 8. Known immediate hypersensitivity to any component of the study product, including polyethylene glycol (PEG). 9. Confirmed past NiV infection, prior residence in (\>6 months), or planned travel for any length of time during the study to countries where NiV infection is endemic, eg. Bangladesh, India, Philippines. Volunteer has a history of any of the following clinically significant conditions: 10. Serious reactions to vaccines that preclude receipt of the study vaccination, including allergic reaction (anaphylaxis, urticaria or allergic reaction requiring medical intervention) to SARS-CoV-2 mRNA vaccines, as determined by the investigator 11. History of myocarditis and/or pericarditis 12. Hereditary angioedema, acquired angioedema, or idiopathic forms of angioedema 13. Asthma that is not well controlled 14. Diabetes mellitus (type I or II), with the exception of gestational diabetes 15. Thyroid disease that is not well controlled 16. Idiopathic urticaria within the past year 17. Autoimmune disease or immunodeficiency 18. Hypertension that is not well controlled 19. Bleeding disorder diagnosed by a doctor (e.g. factor deficiency, coagulopathy, or platelet disorder requiring special precautions) or significant bruising or bleeding difficulties with IM injections or blood draws 20. Malignancy that is active or history of malignancy that is likely to recur during the period of the study 21. Seizure disorder other than 1) febrile seizures, 2) seizures secondary to alcohol withdrawal more than 3 years ago, or 3) seizures that have not required treatment within the last 3 years. 22. Asplenia, functional asplenia or any condition resulting in the absence or removal of the spleen 23. Guillain-Barre Syndrome 24. Any medical, psychiatric, social condition, occupational reason or other responsibility that, in the judgment of the investigator, is a contraindication to protocol participation or impairs a subject s ability to give informed consent, including but not limited to clinically significant forms of: infectious diseases, drug or alcohol abuse, autoimmune diseases, psychiatric disorders, or heart disease.
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
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National Institutes of Health Clinical Center
Bethesda, Maryland, 20892, United States
More trials for these conditions
Other studies related to the condition(s) this trial covers.